激光与光电子学进展, 2018, 55 (2): 020005, 网络出版: 2018-09-10
高带外抑制比微波光子滤波器研究进展 下载: 1193次
Review on High Out-of-Band Suppression Ratio of Microwave Photonic Filter
光通信 微波光子滤波器 带外抑制比 光注入 optical communications microwave photonic filter out-of-band suppression ratio optical injection
摘要
为了拓宽微波光子滤波器应用,综述了基于非相干和相干体制来提高微波光子滤波器带外抑制比的现有方案,分析了各方案的优缺点;利用载波抑制的单边带调制外腔光注入分布反馈式(DFB)激光器的方式实现了单通带微波光子滤波,该方法消除了DFB腔内的四波混频效应,将单通道微波光子滤波器的带外抑制比由原来的20 dB提高至32.3 dB,最后探讨了进一步提高带外抑制比的途径。
Abstract
In order to broaden applications of microwave photonic filter (MPF), we review existing techniques to improve the out-of-band suppression ratio of the MPF implemented in incoherent or coherent operational regime. A single bandpass MPF is proposed based on carrier-suppressed single sideband (CS-SSB) injected distributed feedback (DFB) laser. Four-wave mixing effects have been reduced through optical carrier suppression. The out-of-band suppression ratio of the single bandpass MPF increases from 20 dB to 32.3 dB. The methods to improve the out-of-band suppression ratio of the MPF are discussed.
李元栋, 王荣, 蒲涛, 朱华涛, 郑吉林, 胡猛. 高带外抑制比微波光子滤波器研究进展[J]. 激光与光电子学进展, 2018, 55(2): 020005. Yuandong Li, Rong Wang, Tao Pu, Huatao Zhu, Jilin Zheng, Meng Hu. Review on High Out-of-Band Suppression Ratio of Microwave Photonic Filter[J]. Laser & Optoelectronics Progress, 2018, 55(2): 020005.